earthquakes and volcanoes

Where is the point at which the first movement occurs during an earthquake?

• Epicenter
• Focus
• Fault
• Plate

Where is the point on the Earth’s surface directly above the focus of an earthquake?

• Epicenter
• Fault
• Hypocenter
• Tremor

Which type of wave is the first to arrive after an earthquake occurs?

• P Wave
• Rayleigh Wave
• S Wave
• Shear Wave

Which body wave squeezes and stretches rock materials as they pass through the Earth?

• Body Waves
• P Waves
• S Waves
• Surface Waves

What is an instrument that detects and records waves produced by earthquakes? (This piece of equipment can measure the magnitude of an earthquake.)

• Epicenter
• Fault
• Seismogram
• Seismograph

What is the measure of the amount of energy released in an earthquake?

• Earthquake
• Epicenter
• Magnitude
• Seismogram

What is the temporary state in which loose soil and rock materials take on the property of a liquid?

• Aftershock
• Liquefaction
• Seismic Gap
• Tsunami

What is a smaller earthquake that follows a larger earthquake?

• Aftershock
• Liquefaction
• Seismic Gap
• Tsunami

What is a large ocean wave that results from an underwater earthquake, landslide, or volcanic eruption?

• Aftershock
• Liquefaction
• Seismic Gap
• Tsunami

Which of the following will help predict the site of future earthquakes?

• Aftershock
• Liquefaction
• Seismic Gap
• Tsunami